b For 1992-96, includes propane, liquid petroleum gas, liquefied
natural gas, kerosene, and all other nondiesel fuels except compressed natural
gas. 1960 to 1991 data include propane. Series not continuous between 1991 and
1992.

In January 2000, the American Public Transit Association changed its name to
the American Public Transportation Association (APTA). The Transit Fact Book
is now referred to as the Public Transportation Fact Book.

1 mile = 1.609344 kilometers. 3.785412 liters = 1 gallon.

SOURCE

American Public Transportation Association, Public Transportation Fact Book
(Washington, DC: February 2002), tables 42, 46, 65, 66, 67, and similar
tables in earlier editions of the APTA Transit Fact Book.